<template>
    <div class="swiper-container imgUrl-container">
        <div class="swiper-wrapper">
            <div
                class="swiper-slide"
                v-for="(skuImage, index) in skuInfo.skuImageList"
                :key="skuImage.id"
            >
                <img
                    :src="skuImage.imgUrl"
                    :class="{ active: currentImg == index }"
                    @click="btnImg(index, skuImage.imgUrl)"
                />
            </div>
        </div>
        <div class="swiper-button-next"></div>
        <div class="swiper-button-prev"></div>
    </div>
</template>

<script>
import Swiper from 'swiper';
import { mapGetters } from 'vuex';
export default {
    name: 'ImageList',
    data() {
        return {
            currentImg: 0,
        };
    },
    computed: {
        ...mapGetters('detail', ['skuInfo']),
    },
    methods: {
        btnImg(index, imgUrl) {
            this.currentImg = index;
            this.$bus.$emit('get-imgUrl', imgUrl);
        },
    },
    watch: {
        skuInfo: {
            handler() {
                this.$nextTick(() => {
                    new Swiper('.imgUrl-container', {
                        slidesPerView: 'auto', // 显示几张图片
                        spaceBetween: 100, // 两张图片之间的间距
                        // 如果需要前进后退按钮
                        navigation: {
                            nextEl: '.swiper-button-next',
                            prevEl: '.swiper-button-prev',
                        },
                    });
                });
            },
        },
    },
};
</script>

<style lang="less" scoped>
.swiper-container {
    height: 56px;
    width: 412px;
    box-sizing: border-box;
    padding: 0 12px;

    .swiper-slide {
        width: 56px;
        height: 56px;

        img {
            width: 100%;
            height: 100%;
            border: 1px solid #ccc;
            padding: 2px;
            width: 50px;
            height: 50px;
            display: block;

            &.active {
                border: 2px solid #f60;
                padding: 1px;
            }

            &:hover {
                border: 2px solid #f60;
                padding: 1px;
            }
        }
    }

    .swiper-button-next {
        left: auto;
        right: 0;
    }

    .swiper-button-prev {
        left: 0;
        right: auto;
    }

    .swiper-button-next,
    .swiper-button-prev {
        box-sizing: border-box;
        width: 12px;
        height: 56px;
        background: rgb(235, 235, 235);
        border: 1px solid rgb(204, 204, 204);
        top: 0;
        margin-top: 0;
        &::after {
            font-size: 12px;
        }
    }
}
</style>
